80625980

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{11551}}^1$

素因数の和:11909

約数の個数: 24

約数和(自身を含む): 169814400

約数和(自身を除く): 89188420

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 11551, 23102, 46204, 57755, 115510, 231020, 4031299, 8062598, 16125196, 20156495, 40312990, 80625980]

約数ペア:

[(1, 80625980), (2, 40312990), (4, 20156495), (5, 16125196), (10, 8062598), (20, 4031299), (349, 231020), (698, 115510), (1396, 57755), (1745, 46204), (3490, 23102), (6980, 11551)]